beall



Patented May 9, I399.

No. 624,6l3.

w. L. BEALL,

6 U L T I V AT 0 R.

(Application filed Feb. 15, 1899.)

2 Sheets-Sheet l.

(N0 Model.)

No. 624,6!3. Patnted May 9; 1899. w. L. BEALL.

GULTIVATOR.

lication filed Feb. 15, 1899 glmmnlim 3 .m

"NITEED STATES PATENT OFFICE.

WILLIAM L.-BEALL, OF ALBION, MICHIGAN, ASSIGNOR TO THE GALE MANUFACTURING CoMPANY, OF sAME PLACE.

CU LTIVATO R.

SPECIFICATION forming part of Letters Patent N 0. 624,613, dated May 9, 1899.

V Application filed February 15, 1899. Serial No- 705,570' (No model.)

To aZZ whom it may concern:

Be it known that I, WILLIAM LPBEALL, a citizen of the United States, residing at Albion, in the county of Calhoun and State of Michigan, have invented certain new and useful Improvements in Cultivators; and I do hereby declare the following to be afull, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains to make and use the same.

My invention is an improvement in cultivators; and it consists in the novel features of construction and combination of parts here- 7 inafter described, reference being had to the accompanying drawings, which illustrate one form in which I have contemplated embodying my invention, and said invention is fully disclosed in the following description an claims.

Referring to the drawings, Figure l represents a perspective view of a portion of a cultivator embodying my invention. Fig. 2 is an enlarged perspective view of the parts forming my improved adjustable spring-bahance. Fig. 3 is a detail perspective view of the adjusting-sleeve for varying the tension of the spring. Fig. 4 is a detail perspective View of the adjustable stop-block. Fig. 5 is a similar view of the lower end of the springrod, showing the adjusting device for regulating the depth of cultivation of the shovels.

In the drawings,AArepresent the L-shaped axles of a cultivator, the vertical arms of which are in this instance connected by an integral arch a, and B represents one of the supporting-wheels mounted on one of the raised and lowered, the sleeve 0 turning on the axle to permit such movement, and said section canalso be moved laterally in either direction owing to its vertical pivotal connecnot with said sleeve just described. The

cultivator-section is provided with a guiding- V Attached to the sleeve 0 (or formed integrally therewith) at its inner end is: a horizontal arm 0, which is provided with a slot 0 and preferably with a horizontal lateral rib or web 0 The rib or web 0 may also be strengthened by means of a vertical rib 0 extending therefrom down to the sleeve 0.

F represents a horizontally-adj ustable stopblock, which is preferably constructed so as to straddle the arm a and is provided with a lower straight edge, which has a sliding engagement with the rib c Abolt f is passed through the block F and through the slot 0 in the arm 0 and provided witha wing-nut f or equivalent device, by means ofwhich construction the block can be moved horizontally along the arm 0 within the limits of the slot 0 and secured rigidly in any desired position. The block F is also provided with a centrallyrecessed upper portion, perforated by registering apertures f fand a solid portion or shoulder f G represents a spring-actuated rod, having its upperend passing loosely through a guiding-aperture in a bracket I-I, secured to the vertical portion of the L-shaped axleand having its lower end provided With a cylindrical portion 9, a narrow portion g below the cy- G represents an adjusting-collar for regulating the tension of the spring I, which encircles rod G. This collar is adapted to fit over the cylindrical portion 9 ofthe rod G and is provided with a series of open slots or notches g g g g extending from the lower edge of the collar different distances toward the upper end of the same. The cylindrical portion of the rod G is provided with a stud 9 which is adapted to engage the notches g, &c., and it will be seen that by turning the collar so as to bring different notches 9 850., into engagement with the stud g the collar will set at different heights on the rodG.

The spring I has its lower end engaging collar G and its upper end engaging the bracket H, so that by turning the collarinto different positions, as just described, the spring will be compressed to a greater or less degree, and thus the tension of the spring can be regulated to correspond with the nu mber and weight of shovels carried by the cultivator-section. Moreover, by loosening the nut f and sliding the block F toward or from the sleeve 0 the leverage of the spring with respect to arm 0 will be altered, and in this way the effect of the spring to counterbalance the weight of the cultivator-section can also be adjusted.

K represents an adjustable stop consisting in this instance of a set-screw passing through provided with a jam-nut 7c.

' that when the cultivator-section is moved down, was to bring the shovels into engagej ment with the soil, the stop K will engage the shoulder f and limit the downward move By adjust-g ing this stop the depth to which the shovels ment of the cultivator-section.

will cultivate can be accurately adjusted.

provided in the lower end of the rod G.

applied to the cultivator-section the arm 0 of sleeve 0 will be moved upwardly, carrying with it the block F,'which will move upwardly the stop K and rod G and collar G, (the upward movement of rod Gr being permitted by slot 9 as shown in Fig. 2,) thereby compressing the spring I and cushioning the parts, so as to prevent strain or breakage. I therefore have in thisconstruction an adjustable stop which is capable of yielding to prevent strain, and by means of the collar G 'ferred.

It will be noticed by reference to the drawings that the lower end of the rod G rests on the top edge of the arm 0 at a point a little vforward of a perpendicular line drawn from the axle, and as the section is raised and arm 0 is lowered this point of engagement between rod G and arm 0 moves continually farther forward of the axle and increases the leverage of the spring to compensate for the loss of power of the spring owing to its partial expansion. It will also be noted that when the cultivator-section is so depressed as to raise the adjustable stop K and the rod G, as before described, the point of engagement between the rod G and block F will be moved a considerable distance forward with respect to the axle, as to the shoulder f and greatly increases the leverage of the spring, so that the cultivator-section will be quickly brought back to the normal position determined by the position of the adjustable stop K.

What I claim,and desire to secure by Letters Patent, is-

1. In a cultivator, the combination with a cultivator-frame provided with a horizontal suppbrt,a cultivator-section pivotallysecured to said support adapted to move up and down, and extending in rear of the support, an arm operatively connected to said section and extending forwardly of the said support, a spring operativel y engaging said arm and exerting constantly a pressure thereon, in a direction tending to raise said section, and an adjustable stop limiting the downward movement of the axle, and preventing the point of engagement between the spring and said arm from passing in rear of the said support, whereby the depth of cultivation of said cultivator-section is regulated, substantially as 1 described. In order to prevent the straining of the parts and to enable this stop to yield, the slot g is It will be seen from this construction that if a 1 greater than normal pressure downward is,

2. In a cultivator, the combination with a cultivator-frame provided with a horizontal support,a cultivator-section pivotally secured to said support adapted to move up and down, and extending in rear of the support, an arm operatively connected tosaid section and ex tending forwardly of the said support, a spring operatively engaging said arm and-exerting constantly a pressure thereon, ina direction tending to raisesaid section, a yielding adjustable stop limiting the downward movement-of the axle and preventing the point of engagement between the spring and said arm from passing in rear of the said support, whereby the depth of cultivation of said cultivator-section is regulated, substantially as described.

3. In a cultivator the combination with the cultivator-frame provided with a horizontal support, of a cultivator-section pivotally secured to said support adapted to move up.

and down and extending in rear of said support, an arm secured tosaid section and exing the point of engagement of-said arm and lIO said rod from passing in rear of the said support, substantially as described.

4. In a cultivator, the combination with a pivoted cultivator-section adapted to move vertically on its pivot and having a horizontal arm connected therewith, of a sliding block carried by said arm a counterbalance-spring operatively connected with said block and means for securing said block rigidly to said arm, whereby the leverage of the spring can be varied by moving said block on said arm, substantially as described.

5. In a cultivator, the combination with the cultivator-frame provided with a horizontal support, of a cultivator-section pivotally secured to said support adapted to move up and down and extending in rear of said support,

an arm secured to said section and extending forward of said support, a' spring-actuated rod, having a pivotal connection with said support, and exerting constantly a pressure thereon tending to raise the cultivator-section, means for adjusting the lower end of said rod forward and backward with respect to said arm to vary its leverage thereon, and an adjustable stop limiting the downward movement of the cultivator-section, substantially as described.

6. Ina cultivator, the combination with a pivoted cultivator-section adapted to move vertically on its pivot and having a horizontal arm, of a sliding block on said arm, means for securing said block to said arm in any position to which it is adjusted, a guide-rod pivotally connected to said block by a connection permitting the longitudinal movement of the rod, with respect to said block, an adjustable stop secured to said rod and engaging said block at a greater distance from the pivot of the cultivator-section, than the connection between said rod and said block, substantially as described.

7. In a cultivator the combination with a pivoted cultivator-section adapted to move vertically on its pivot andhaving an arm, of a rod having a pivotal connection with said arm, a sleeve on said rod, said rod and said sleeve being provided the one with a series of recesses of different vertical lengths, and the other with a stud to engage said recesses to vary the vertical position of said sleeve on said rod,- and a counterbalance-spring on said rod having one end engaging said sleeve, substantially as described.

8. In a cultivator, the combination with a pivoted cultivator-section adapted to move vertically on its pivot and having an arm connected therewith, of a rod having a pivotal connection with said arm and provided with a laterally-projecting stud, a sleeve on said rod having a series of longitudinal recesses of different depths adapted to engage said stud to vary the position of said sleeve longitudinally of saidv rod, and a counterbalancespringonsaid rod having one end engaging said sleeve, substantially as described.

9. In a cultivator, the combination with a pivoted cultivator-section adapted to move vertically on its pivot and provided with a horizontal arm connected therewith, of a rod having a pivotal connection with said arm and provided with a stud, said pivotal con nection permitting the longitudinal movement of said rod with respect to said arm, a sleeve on said rod having a series of longitudinal recesses of different lengths to engage said stud, a spring engaging said sleeve, an

adjustable stop on said rod out of line with its pivotal connection with the said arm, and adapted to engage a part connected-with said arm for limiting the downward movement of said cultivator-section, substantially as de-.

scribed.

10. ha cultivator, the combination with a pivoted cultivator-section provided with a horizontal bar, connected therewith, of a sliding block on said arm, means for securing said arm rigidly to said block, a rod pivoted to said block by a connection providing for the'longitudinal movement of said rod with respect to said block, a laterally-projecting stud on said rod, a sleeve on saidrod provided with a series of longitudinal recesses of different lengths, for engaging said stud, a counterbalance; spring having one end engaging said sleeve, an adjustable stop secured to said rod out of line with its pivotal connection with said block and adapted to engage a part of said block to limit the d0wnstantially as described.

11. In a cultivator, the combination with the horizontal axle, of a sleeve loosely mounted thereon and a cultivator-section secured to said sleeve and adapted to move up and down on the axle as a pivot, said sleeve having an integral horizontal arm, extending forward of the axle, of a rod having a pivotal connection with said arm, a spring on said rod, means fo r varying the compression of said spring, means for varying the point of engage- ,ment between said rod and said arm to vary G. W. BORTLES, M. L. DEAN.

Ill) 

